oss-sec mailing list archives
Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2
From: Brad Spengler <spender () grsecurity net>
Date: Thu, 22 Aug 2019 12:59:14 -0400
Sorry, a little too much marketing coming out of this camp these days, and this one demands a response. On Thu, Aug 22, 2019 at 09:20:00AM -0700, Greg KH wrote:
On Thu, Aug 22, 2019 at 05:16:03PM +0200, Andrey Konovalov wrote:On a side note, currently there's an issue with many Linux kernel bugs being fixed, but not backported to distro kernels. Those bugs might have security implications, but there's no way to know that, unless someone specifically spends time to assess them in that regard. Requesting CVEs for those bugs is a way to get the fixes into distro kernels (even though that doesn't always work promptly [1] :). [1] https://www.openwall.com/lists/oss-security/2018/10/30/2Note, I am scraping the logs for anything that says it is fixed due do a syzbot find or report and backporting them to the stable kernel branches. So those distros that do follow the LTS/stable kernel releases do get these fixes.
All of the fixes, Greg? Who backports them? Would you like to share with the list what happens when an upstream fix doesn't apply cleanly to an earlier kernel? What happens when a volunteer doesn't show up to backport the fix for you? If security fixes are being tracked as your "everything is fine, nothing to see here" reply suggests, we wouldn't be carrying hundreds of security fixes your LTS kernels are missing. You'd also need to explain very easy to find examples like this: https://www.spinics.net/lists/stable/msg317698.html of random LTS kernels not receiving security fixes. This particular issue was public since April (which is when we backported fixes for it to 4.4/4.14). It's now 4 months later and your 4.4 6-year "supported" LTS kernel still doesn't contain the fixes. This list should be for informing people, not for spreading misinformation and a sense of security that you must know is false. Thanks, -Brad
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Current thread:
- Linux kernel: multiple vulnerabilities in the USB subsystem x2 Andrey Konovalov (Aug 20)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Eric Biggers (Aug 21)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 John Haxby (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Marcus Meissner (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 John Haxby (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Andrey Konovalov (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Greg KH (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Brad Spengler (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Greg KH (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Marcus Meissner (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Perry E. Metzger (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Jeremy Stanley (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 John Haxby (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Kurt H Maier (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Eddie Chapman (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Perry E. Metzger (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Eddie Chapman (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Mathias Payer (Aug 22)
- Re: Linux kernel: multiple vulnerabilities in the USB subsystem x2 Stuart D. Gathman (Aug 22)